Hey everyone! I'm new to Linux and recently started using Ubuntu Server 22.04 for some projects at work. I'm running a company portal for internal access through Apache, but I'm facing unstable access on certain computers. Sometimes it works smoothly, and other times it doesn't connect at all. My own laptop has no issues accessing it, but others often require multiple refreshes to load the page. I've thought about installing Grafana for metrics, but I'm not sure if it would help since my application is fairly straightforward. My portal is mostly static HTML/CSS that displays data via JSON generated from workflows in n8n using Google Sheets. I'm looking for some guidance on troubleshooting these access failures. Any advice would be appreciated!
3 Answers
Start by checking the Apache access and error logs. It sounds like you might be dealing with a broader issue that's not just related to the web server. Are all the affected users on the same VLAN? It could be a firewall policy or filtering that’s causing the inconsistencies.
Along with reviewing the logs and checking the configuration and VM capacity, try using tools like curl or wget, and consider nmap or netcat to diagnose the connectivity issues. For example, you can use `nc -vz URL PORT` to see if the connection is successful. If you're dealing with self-signed HTTPS, remember to use `curl -v --insecure URL`. If things still aren't working, Wireshark packet capture might shed some light on the situation.
By the way, it seems like there's a misconception here since you're posting in Portuguese. Ensure you're not having DNS checking active in Apache, as modern browsers often prefer TCP port 443 over 80. For future posts, consider including more technical details to get better-helped, or check out Brazilian tech communities on StackExchange for more localized advice.
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